Portable power battery debugging tool

Abstract

The utility model discloses a portable power battery debugging tool which comprises a battery debugging box, a lithium battery is arranged in the battery debugging box, and a first power supply interface, a second power supply interface and a third power supply interface are arranged on the outer wall of the battery debugging box. The power supply interface I, the power supply interface II and the power supply interface III are connected in parallel through connecting wires and are electrically connected with the lithium battery; a CAN communication box is arranged in the battery debugging box. The outer wall of the battery debugging box is further provided with a CAN1-H interface, a CAN1-L interface, a CAN2-H interface, a CAN2-L interface, a K3 selector switch and a USB computer interface. A CAN-H port and a CAN-L port on the CAN communication box are electrically connected with the CAN1-H interface, the CAN1-L interface, the CAN2-H interface and the CAN2-L interface through a K3 change-over switch and connecting wires, and a USB port on the CAN communication box is electrically connected with a USB computer interface; the device has the advantages of being simple in structure, convenient to carry, high in integration degree, capable of reducing the labor intensity of debugging personnel, high in debugging efficiency and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of battery debugging, in particular to a portable power battery debugging tool. Background Art

[0002] In the process of designing and manufacturing the battery pack, an important stage is the sample trial production link. Among them, technicians often encounter many problems in the process of debugging electrical performance. The first is the power supply problem. The BMS management system in the battery pack requires a stable low-voltage DC power supply. The commonly used power supply in life is 220V AC, which requires a rectifier to convert 220V AC into 12V DC. In addition, the 220V socket may be too far away at the debugging site, and an extension strip is required. The second is to establish communication. The technician needs to use the CAN communication box to connect the debugging CAN line of the BMS end, and read the battery information through the upper computer software on the computer. When connecting, a screwdriver is required for disassembly and assembly. It is inevitable to carry additional tools such as screwdrivers. If the signal line of another channel needs to be read, disassembly and assembly will become more cumbersome. The third is functional testing. For models with fast charging or slow charging functions, the battery pack must also undergo corresponding functional testing. The CC signal line of the BMS management system needs to detect the 1K resistor and the charging socket temperature before it can determine that the slow charging gun is inserted and enter the slow charging mode; the CC2 signal line detects the 1K resistor and the charging socket temperature before it enters the fast charging mode. Since the battery factory cannot actually adapt the vehicle model, these functions cannot be effectively verified. In addition, some car companies will install relays such as fast charging, slow charging, and air conditioning in the high-voltage box of the whole vehicle, but these relays need the BMS inside the battery pack to output signal control, with high-level control or low-level control. In order to verify whether the signal is output normally during debugging, a multimeter is generally used to measure directly. It is not easy for a single person to hold a multimeter. If there are multiple signals, the measurement is more cumbersome. Therefore, there are problems such as cumbersome power battery debugging operation, high labor intensity of debugging work, and low debugging operation efficiency. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a portable power battery debugging tool to effectively solve the problems of difficulty in finding and using electricity during the debugging process. Signal simulation and signal monitoring can be quickly performed through multiple functional interfaces and switches on the battery debugging box. The degree of integration is high, the labor intensity of the debugging personnel is reduced, and the debugging efficiency is high. The battery debugging tool has a simple structure and is easy to carry, which can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a portable power battery debugging tool, including a battery debugging box, a lithium battery is arranged inside the battery debugging box, and power supply interface 1, power supply interface 2 and power supply interface 3 are arranged on the outer wall of the battery debugging box, power supply interface 1, power supply interface 2 and power supply interface 3 each include a positive electrode interface and a negative electrode interface, power supply interface 1, power supply interface 2 and power supply interface 3 are connected in parallel with each other through connecting lines and are electrically connected to the lithium battery, and the connecting lines of power supply interface 1, power supply interface 2 and power supply interface 3 are electrically connected with K1 power supply switches, and the K1 power supply switches are all arranged on the outer wall of the battery debugging box; a CAN communication box is arranged inside the battery debugging box, and CAN interface 1, power supply interface 2 and power supply interface 3 are also arranged on the outer wall of the battery debugging box. CAN interface two, K3 switching switch and USB computer interface; the CAN interface one includes a CAN1-H interface and a CAN1-L interface, the CAN interface two includes a CAN2-H interface and a CAN2-L interface, the CAN communication box is provided with a USB port, a CAN-H port and a CAN-L port, and the CAN-H port and the CAN-L port on the CAN communication box are electrically connected to the CAN1-H interface, the CAN1-L interface, the CAN2-H interface and the CAN2-L interface through the K3 switching switch and the connecting line, and the USB port on the CAN communication box is electrically connected to the USB computer interface; the battery debugging box is also provided with a charging interface, and the charging interface is electrically connected to the lithium battery through the connecting line.

[0005] Furthermore, a CC interface and a CC2 interface are provided on the outer wall of the battery debugging box, and the CC interface and the CC2 interface are electrically connected to the negative electrode of the lithium battery through a connecting line, and the CC interface and the CC2 interface are connected in parallel with each other; a resistor R1 with a resistance value of 1K and a K2 charging gun analog signal switch are connected in series on the connecting lines of the CC interface and the CC2 interface, and the K2 charging gun analog signal switch is arranged on the outer wall of the battery debugging box.

[0006] Furthermore, a high-level interface and a low-level interface are provided on the outer wall of the battery debugging box. The high-level interface and the low-level interface are electrically connected to the positive and negative electrodes of the lithium battery respectively through connecting wires, and light-emitting diodes are electrically connected to the connecting wires of the high-level interface and the low-level interface.

[0007] Furthermore, a temperature simulation interface 1 and a temperature simulation interface 2 are provided on the outer wall of the battery debugging box, the temperature simulation interface 1 includes an NTC1 positive electrode interface and an NTC1 negative electrode interface, and the temperature simulation interface 2 includes an NTC2 positive electrode interface and an NTC2 negative electrode interface; the NTC1 positive electrode interface and the NTC1 negative electrode interface are electrically connected through a connecting line, and a resistor R2 with a resistance value of 10K is also electrically connected to the connecting line; the NTC2 positive electrode interface and the NTC2 negative electrode interface are electrically connected through a connecting line, and a resistor R2 with a resistance value of 10K is also electrically connected to the connecting line.

[0008] Furthermore, a K4 on-off switch is electrically connected between the connection line of the NTC1 negative electrode interface and the connection line of the NTC2 negative electrode interface, and the K4 on-off switch is arranged on the outer wall of the battery debugging box.

[0009] Compared with the prior art, the beneficial effects of the utility model are as follows: the portable power battery debugging tool has a built-in rechargeable lithium battery, which effectively solves the problem of difficulty in finding and using electricity during the debugging process; signal simulation and signal monitoring can be performed quickly through multiple functional interfaces and switches on the battery debugging box; the degree of integration is high, which reduces the labor intensity of debugging personnel and improves debugging efficiency; and the battery debugging tool has a simple structure and is easy to carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the utility model;

[0011] Figure 2 This is the rear view of the battery debugging box of the utility model;

[0012] Figure 3 This is a side view of the battery debugging box of the utility model;

[0013] Figure 4 for Figure 1 Partial magnification;

[0014] Figure 5 This is the circuit schematic diagram of the multi-channel power supply part of the utility model;

[0015] Figure 6 This is the circuit schematic diagram of the communication part of the utility model;

[0016] Figure 7 This is the circuit schematic diagram of the temperature simulation part of the utility model.

[0017] In the figure: 1 battery debugging box, 2 lithium battery, 3 power supply interface 1, 4 power supply interface 2, 5 power supply interface 3, 6 K1 power switch, 7 CC interface, 8 CC2 interface, 9 K2 charging gun analog signal switch, 10 CAN communication box, 11 CAN interface 1, 12 CAN interface 2, 13 K3 switch, 14 high level interface, 15 low level interface, 16 temperature simulation interface 1, 17 temperature simulation interface 2, 18 K4 on-off switch, 19 USB computer interface, 20 charging interface. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0019] See also Figure 1-7 The utility model provides a technical solution: a portable power battery debugging tool, including a battery debugging box 1, a 12V lithium battery 2 is arranged inside the battery debugging box 1, and a power supply interface 1 3, a power supply interface 2 4 and a power supply interface 3 5 are arranged on the outer wall of the battery debugging box 1, and the power supply interface 1 3, the power supply interface 2 4 and the power supply interface 3 5 each include a positive electrode interface and a negative electrode interface, and the power supply interface 1 3, the power supply interface 2 4 and the power supply interface 3 5 are connected in parallel with each other through connecting lines and are electrically connected to the lithium battery 2, and the connecting lines of the power supply interface 1 3, the power supply interface 2 4 and the power supply interface 3 5 are electrically connected with a K1 power supply switch 6, and the K1 power supply switch 6 is arranged on the outer wall of the battery debugging box 1; a CAN communication box 10 is arranged inside the battery debugging box 1, and a CAN interface 11, CAN interface 2 12, K3 switching switch 13 and USB computer interface 19; the CAN interface 1 1 includes a CAN1-H interface and a CAN1-L interface, the CAN interface 2 12 includes a CAN2-H interface and a CAN2-L interface, the CAN communication box 10 is provided with a USB port, a CAN-H port and a CAN-L port, and the CAN-H port and the CAN-L port on the CAN communication box 10 are electrically connected to the CAN1-H interface, the CAN1-L interface, the CAN2-H interface and the CAN2-L interface through the K3 switching switch 13 and the connecting line, and the USB port on the CAN communication box 10 is electrically connected to the USB computer interface 19; the battery debugging box 1 is also provided with a charging interface 20, and the charging interface 20 is electrically connected to the lithium battery 2 through a connecting line.

[0020] Furthermore, a CC interface 7 and a CC2 interface 8 are provided on the outer wall of the battery debugging box 1, and the CC interface 7 and the CC2 interface 8 are electrically connected to the negative electrode of the lithium battery 2 through a connecting line, and the CC interface 7 and the CC2 interface 8 are connected in parallel with each other; a resistor R1 with a resistance value of 1K and a K2 charging gun analog signal switch 9 are connected in series on the connecting lines of the CC interface 7 and the CC2 interface 8, and the K2 charging gun analog signal switch 9 is arranged on the outer wall of the battery debugging box 1.

[0021] Furthermore, a high-level interface 14 and a low-level interface 15 are provided on the outer wall of the battery debugging box 1. The high-level interface 14 and the low-level interface 15 are electrically connected to the positive and negative electrodes of the lithium battery 2 respectively through connecting wires, and light-emitting diodes are electrically connected to the connecting wires of the high-level interface 14 and the low-level interface 15.

[0022] Furthermore, a temperature simulation interface 16 and a temperature simulation interface 2 17 are also provided on the outer wall of the battery debugging box 1, and the temperature simulation interface 1 16 includes an NTC1 positive electrode interface and an NTC1 negative electrode interface, and the temperature simulation interface 2 17 includes an NTC2 positive electrode interface and an NTC2 negative electrode interface; the NTC1 positive electrode interface and the NTC1 negative electrode interface are electrically connected through a connecting line, and a resistor R2 with a resistance value of 10K is also electrically connected to the connecting line; the NTC2 positive electrode interface and the NTC2 negative electrode interface are electrically connected through a connecting line, and a resistor R2 with a resistance value of 10K is also electrically connected to the connecting line.

[0023] The K3 switch 13 is a tripod rocker switch.

[0024] Working principle:

[0025] Multi-way power supply: by using quick wiring clamps to electrically connect the "normal power input positive terminal" and "normal power input negative terminal" led out of the battery BMS with the positive interface and negative interface of the power supply interface 1 3, by using quick wiring clamps to electrically connect the "key ON gear" led out of the battery BMS with the positive interface and negative interface of the power supply interface 2 4, by using quick wiring clamps to electrically connect the "charging auxiliary power supply positive terminal" and "charging auxiliary power supply negative terminal" led out of the battery BMS with the positive interface and negative interface of the power supply interface 3 5; close the K1 power supply switch on the power supply interface 1 3, the power supply interface 2 4 and the power supply interface 3 5 to energize the "normal power input", "key ON gear" and "charging auxiliary power supply" of the battery BMS; by controlling the K1 power supply switch 6, the power supply input of different signals can be quickly realized.

[0026] Channel switching: Use the quick-connect clamp to electrically connect the "debugging CAN high line" and "debugging CAN low line" led out of the battery BMS to the CAN1-H interface and CAN1-L interface on the CAN interface 11, and electrically connect the "vehicle CAN high line" and "vehicle CAN low line" led out of the battery BMS to the CAN2-H interface and CAN2-L interface on the CAN interface 2 12, and toggle the K3 switch 13 to the left to connect the CAN communication box 10 with the CAN1-H interface and the CAN1-L interface. At this time, the CAN communication The communication box 10 can read the contents of "debugging CAN high line" and "debugging CAN low line"; toggle the K3 switching switch 13 to the right to connect the CAN communication box 10 with the CAN2-H interface and the CAN2-L interface, and the CAN communication box 10 can read the contents of "whole vehicle CAN high line" and "whole vehicle CAN low line"; connect the USB computer interface 19 to the computer, and the computer can read the information collected by the CAN communication box 10; by toggling the K3 switching switch 13, a CAN communication box 10 can read the contents of signal lines of different channels.

[0027] Signal simulation: Use quick-connect clamps to electrically connect the "slow charge CC" and "fast charge CC2" led out of the battery BMS to the CC interface 7 and CC2 interface 8 respectively, close the K2 charging gun analog signal switch 9 connected to the CC interface 7, if the "slow charge CC" led out of the battery BMS detects a resistance value of 1K, it is determined that the slow charging gun is connected normally; close the K2 charging gun analog signal switch 9 connected to the CC2 interface 8, if the "fast charge CC2" led out of the BMS detects a resistance value of 1K, it is determined that the fast charging gun is connected normally.

[0028] Signal detection: Use quick-connect clamps to electrically connect the "high level drive" and "low level drive" led out of the battery BMS to the high level interface 14 and the low level interface 15 respectively. If the light-emitting diode connected to the high level interface 14 lights up, it means that the "high level drive" signal of the BMS is valid; if the light-emitting diode connected to the low level interface 14 lights up, it means that the "low level drive" signal of the BMS is valid.

[0029] Temperature simulation: By using quick wiring clamps to electrically connect the "positive pole of charging port temperature detection line 1" and "negative pole of charging port temperature detection line 1" led out of the battery BMS to the NTC1 positive pole interface and NTC1 negative pole interface of the temperature simulation interface 16 respectively, and by using quick wiring clamps to electrically connect the "positive pole of charging port temperature detection line 2" and "negative pole of charging port temperature detection line 2" led out of the battery BMS to the NTC2 positive pole interface and NTC2 negative pole interface of the temperature simulation interface 2 17 respectively, the temperature conditions of the "charging port temperature detection line 1" and "charging port temperature detection line 2" can be read from the computer software.

[0030] The portable power battery debugging tool disclosed in this embodiment has a built-in rechargeable lithium battery 2, which effectively solves the problem of difficulty in finding and using electricity during the debugging process. Signal simulation and signal monitoring can be quickly performed through multiple functional interfaces and switches on the battery debugging box 1. The high degree of integration reduces the labor intensity of the debugging personnel, and the battery debugging tool has a simple structure and is easy to carry.

[0031] Furthermore, a K4 on-off switch 18 is electrically connected between the connecting line of the negative electrode interface of NTC1 and the connecting line of the negative electrode interface of NTC2, and the K4 on-off switch 18 is arranged on the outer wall of the battery debugging box 1; some BMS manufacturers have three temperature lines, among which the "negative electrode of the charging port temperature detection line 1" and the "negative electrode of the charging port temperature detection line 2" share one line, so a K4 on-off switch 18 is arranged in the line, and by closing the K4 on-off switch 18, the negative electrode interface of NTC1 and the negative electrode interface of NTC2 can be short-circuited into one line, which is convenient for coping with the configuration of different BMS manufacturers.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable power battery debugging tool, including a battery debugging box, characterized in that: A lithium battery is arranged inside the battery debugging box, and power supply interface 1, power supply interface 2 and power supply interface 3 are arranged on the outer wall of the battery debugging box, and power supply interface 1, power supply interface 2 and power supply interface 3 each include a positive electrode interface and a negative electrode interface, and power supply interface 1, power supply interface 2 and power supply interface 3 are mutually connected in parallel through connecting wires and electrically connected to the lithium battery, and the connecting wires of power supply interface 1, power supply interface 2 and power supply interface 3 are electrically connected with K1 power supply switches, and the K1 power supply switches are all arranged on the outer wall of the battery debugging box; a CAN communication box is arranged inside the battery debugging box, and CAN interface 1, CAN interface two, K3 switching switch and USB computer interface; the CAN interface one includes a CAN1-H interface and a CAN1-L interface, the CAN interface two includes a CAN2-H interface and a CAN2-L interface, the CAN communication box is provided with a USB port, a CAN-H port and a CAN-L port, and the CAN-H port and the CAN-L port on the CAN communication box are electrically connected to the CAN1-H interface, the CAN1-L interface, the CAN2-H interface and the CAN2-L interface through the K3 switching switch and the connecting line, and the USB port on the CAN communication box is electrically connected to the USB computer interface; the battery debugging box is also provided with a charging interface, and the charging interface is electrically connected to the lithium battery through the connecting line.

2. A portable power battery debugging tool according to claim 1, characterized in that: The outer wall of the battery debugging box is also provided with a CC interface and a CC2 interface, which are both electrically connected to the negative electrode of the lithium battery through a connecting line, and the CC interface and the CC2 interface are connected in parallel with each other; a resistor R1 with a resistance value of 1K and a K2 charging gun analog signal switch are connected in series on the connecting lines of the CC interface and the CC2 interface, and the K2 charging gun analog signal switch is arranged on the outer wall of the battery debugging box.

3. A portable power battery debugging tool according to claim 1, characterized in that: A high level interface and a low level interface are also provided on the outer wall of the battery debugging box. The high level interface and the low level interface are electrically connected to the positive and negative electrodes of the lithium battery respectively through connecting wires, and light emitting diodes are electrically connected to the connecting wires of the high level interface and the low level interface.

4. The portable power battery debugging tool according to claim 1, characterized in that: The outer wall of the battery debugging box is also provided with a temperature simulation interface 1 and a temperature simulation interface 2, wherein the temperature simulation interface 1 includes an NTC1 positive electrode interface and an NTC1 negative electrode interface, and the temperature simulation interface 2 includes an NTC2 positive electrode interface and an NTC2 negative electrode interface; the NTC1 positive electrode interface and the NTC1 negative electrode interface are electrically connected via a connecting line, and a resistor R2 with a resistance value of 10K is also electrically connected to the connecting line; the NTC2 positive electrode interface and the NTC2 negative electrode interface are electrically connected via a connecting line, and a resistor R2 with a resistance value of 10K is also electrically connected to the connecting line.

5. The portable power battery debugging tool according to claim 4, characterized in that: A K4 on-off switch is electrically connected between the connection line of the NTC1 negative electrode interface and the connection line of the NTC2 negative electrode interface, and the K4 on-off switch is arranged on the outer wall of the battery debugging box (1).

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